[llvm] [Offload][NFC] Remove all trailing whitespace from offload/ (PR #92578)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

@ronlieb AMDGPU version (just a sed find / replace) https://gist.github.com/jhuber6/c575619bb5ec0feb9e62353a41c9d0ac.

https://github.com/llvm/llvm-project/pull/92578